Answer:
Simply identify what elements are in a compound
Explanation:
For example in NaCl we have sodium (Na) and Chlorine (Cl)
In order to do this you would need to recognise the symbols for a certain element: O for oxygen; N for nitrogen; H for hydrogen etc.
The correct answer would be air
Answer:
A
Explanation:
has properties that are different from the original substances.
Explanation:
cant answer without context
